An Official Website of the United States Government

Medicare Prescription Drug Benefit (Part D)

Department of Health and Human Services

Medicare Prescription Drug Benefit (Medicare Part D) is a federal prescription drug benefit program for Medicare beneficiaries.

Agency Accountable Official: Ellen Murray, Assistant Secretary for Financial Resources



Total Payments (Outlays)more info


Improper Paymentsmore info


Improper Payment Ratemore info


3.1% Improper Payment Rate Target more info

All amounts are in billions of dollars

Tabular view for Projected improper payments Tabular View   

Program Comments

In Fiscal Year (FY) 2014, HHS is reporting a composite error estimate for the Medicare Prescription Drug Program (Part D), based on Calendar Year (CY) 2012 payments. The FY 2014 Part D Composite Payment Error Rate combines four component payment error measures: the Payment Error relating to Low Income Subsidy Status (PELS); the Payment Error Related to Incorrect Medicaid Status (PEMS); the Payment Error Related to Prescription Drug Event Data Validation (PEPV); and the Payment Error related to Direct and Indirect Remuneration (PEDIR). More information on this program can be found in the Department's Agency Financial Report (available at